I have a C-4 in a fox question ??

Bottlefed83 · May 20, 2008

I am trying to put a C4 into my 83, and it is being a total pain in the ass. I have the maximum motorsports tube K- member. My problem is that the tranny mount was too far forward so I moved the motor back to the second set of holes on the k-member for the motor to set in. and now the steering coupler hits the motor mount and the tranny mount is where it needs to be but over to one side WAY to much. All of the mounts are urathane. but the tranny mount came from my T-5. Does that make the diference? Anybody else have problem or can help me out? What is the deal here?

yello05 · May 20, 2008

steve, did you cut the welds and slide the mount forward when you first mocked it up in the forward position? I could swear that was all it took. It kinda sounds like the mount may have been put in backwards, that would make the offset you are seeing. Just a thought.

Bottlefed83 · May 20, 2008

The mount was way far forward though, like not even line with the bolts on the body for the crossmember. I got another crossmember that is all the way forward now. That with the motor moved back is how I got to this point.

yello05 · May 20, 2008

hmm, weird that it would be offset to the one side though. Thats the only thing I could think of- if the mount was in backwards (right side to left, etc) cause I thought they had some offset to them. Now that I think about it I dont think the humps would fit the tunnel the opposite way though.

Bottlefed83 · May 20, 2008

What about the urathane tranny mount? are they the same from stick to auto. I talked to the kid I traded my T-5 for and he bolted it in his car perfect after the auto was in. So I dont know where the problem is. But I did move the motor back up to the front set of holes and I think I might modify the crossmember. That is kinda what it looks like it needs, is for the crossmember to be turned around, but If you do that then the holes are to far back because on the ends of the crossmember are at one end.

orangewhiner · May 20, 2008

I know for a fact that the t-5 and c-4 mounts are one in the same. As far as the k-member and lining it all up

yello05 · May 21, 2008

It sounds like you just need to cut the welds on the crossmember and slide the tubes to the opposite end. This is how the swaps are usually done (AOD-T5)

Bottlefed83 · May 21, 2008

orangewhiner said:
I know for a fact that the t-5 and c-4 mounts are one in the same. As far as the k-member and lining it all up

Yea thats what the guy I traded my tranny for also said.

Thanks

yello05 said:
It sounds like you just need to cut the welds on the crossmember and slide the tubes to the opposite end. This is how the swaps are usually done (AOD-T5)

Yea as long as the humps can go on either side that may work because right now I have a crossmember in the car that is like that, but it seems like it would need to be turned around and re welded on the other side. But also now that I put the motor back in the first set on holes on the k-member now I'm about 1/2" before the crossmember. Because if I have the motor in the rear holes the motor mount hits the steering coupler. This is a bunch of B.S. really.

yello05 · May 21, 2008

stick with the front holes, to fix the coupler issue, and just hog out the holes in the crossmember a bit. You should be able to get the 1/2" easily enough. You can get it all mocked up and running without welding the crossmember tubes in place if you dont have a welder there. Aint like its going anywhere.

You'll get it, aftermarket is always fun

Bottlefed83 · May 21, 2008

I just went out and looked. If I turn the crossmember around and re weld the tubes on the other end I may be able to get it to work. I will check later today.

Thanks

stock50LX · May 21, 2008

Sounds like he's got it now. I would add to the already good advice given that the motor mounts have a front and back too; reversing them will result in fitment issues.

Bottlefed83 · May 21, 2008

stock50LX said:
Sounds like he's got it now. I would add to the already good advice given that the motor mounts have a front and back too; reversing them will result in fitment issues.

The motor mounts should already be correct, because I took out the T-5 that fit perfect. So really this auto should go back in perfect. But of course that cant happen.

Thanks.

Stangler · May 21, 2008

Just remember, the larger hump in the crossmember should bo on the pass side.

Nate

stock50LX · May 21, 2008

Bottlefed83 said:
The motor mounts should already be correct, because I took out the T-5 that fit perfect. So really this auto should go back in perfect. But of course that cant happen.

Thanks.

For my car (an '82), I had to slide the trans mount cross-member to the full forward position. The cross member can be purchased from Summit with sliding mounts for $59. My old trans mount had been moved too much already (ground and rewelded several times) so I had to buy a new one. I was running a T5 prior to the current C4. The C4 is shorter, so if you need to move your mounts backward, something else is wrong. Your car should be the same as mine.

Bottlefed83 · May 21, 2008

Stangler said:
Just remember, the larger hump in the crossmember should bo on the pass side.

Nate

Thanks that is kinda what I needed to know, because I was putting the large hump on the drivers side because with the mount all the way forward the big hump was on that side.

stock50LX said:
For my car (an '82), I had to slide the trans mount cross-member to the full forward position. The cross member can be purchased from Summit with sliding mounts for $59. My old trans mount had been moved too much already (ground and rewelded several times) so I had to buy a new one. I was running a T5 prior to the current C4. The C4 is shorter, so if you need to move your mounts backward, something else is wrong. Your car should be the same as mine.

Yea I do need it all they way forward, but how my crossmember is all the way forward the holes side to side are way off. So I just need to cut and reweld the ends so I can turn the crossmember around.

Thanks

Bottlefed83 · May 21, 2008

Ok I screwed with the crossmember and did some cutting, but finally got it to bolt on. Now for the driveline. I have a aluminum motorsport driveline and the yoke is 5" long and half of it goes in the tranny. Is that enough?

orangewhiner · May 21, 2008

As long as it is all the way in, then you are fine. Even on some stockers you can see the splines ( it freaked me out when I saw it the 1st time).

Bottlefed83 · May 21, 2008

Well it's not all the way in. It is half way in, so 2 1/2 " its in on a 5' yoke. But you cannot see any splines.

MyFordsFly · May 22, 2008

Steeda has a spacer that gives another half inch. Might check it out.

Bottlefed83 · May 22, 2008

MyFordsFly said:
Steeda has a spacer that gives another half inch. Might check it out.

Ok cool I will have to do that.

Thanks

I have a C-4 in a fox question ??

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